Proof is a play by David Auburn that originally premiered in 2000. I saw a production by the Mitre Players which took place in the TMWA Clubhouse in Croydon.
The play is about Catherine, a young woman with a history of depression whose father has recently died. An acclaimed mathematician, a notebook of his is discovered in a drawer, containing a radical new theory. However, Catherine, also a talented mathematician, claims that the theory is hers. Is she telling the truth?
This compelling play was well acted and proved to be an enjoyable evening at the theatre.